
public abstract class House {

	protected String mSkeleton = "wooden";
	protected String mWall = "wooden";
	protected String mRoof = "wooden";
	
	protected House() {
		
	}
	
	public abstract void setSkeleton(String skeleton);
	public abstract void setWall(String wall);
	public abstract void setRoof(String roof);
	
	@Override
	public String toString() {
		return "House [" +
				"mSkeleton="+ mSkeleton +
				", mWall=" + mWall + 
				", mRoof=" + mRoof +
				"]";
	}
}
